I installed the dealer engine and transmission mounts. They were Made in Canada, same as the factory originals that I took off. The original motor mounts had settled about 1/4" or more. The transmission mount was still decent, but after removal I noticed cracks forming on the rear. It was a pretty straight forward job. The longest part was probably cleaning all the grime off the exhaust support plate and crossmember.
I do have a few post-install questions:
1. One of the bolts, the one closet to the exhaust, into the transmission/transfer case adapter came out with some aluminum on it, about one thread worth. I didn't want to put that back in, so I replaced the bolt with one from my hitch/skid plate (they are the same). Is there any way to proven this from happening? I had sprayed penetrant on those bolts, but still needed a 3 foot pipe to get this one loose. The threads weren't bad enough to warrant drilling/ tapping/ helicoiling. I had the same problem with aluminum getting stuck to the bolts one of the A/C compressor mount bolts when doing my head. Is there any way to get the aluminum off the bolt so it can be reused?
2. With the exhaust support off, I was able to move the exhaust about 1/4-1/2". I noticed this slop was coming from the joint between the exhaust manifold and the mini-cats (01 XJ, 4 O2 sensors). Is this normal? Also, the mini-cat pipe and oil pan nearly touch. There is no more than 1/4" space there, not a fingers width. Is this normal??? How much space should there be?
Thanks!